Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Narrative) (Details)

v2.4.0.8
Stock-Based Compensation (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Stockholders' Equity Note, Stock Split, Conversion Ratio   0.05    
Options granted     4,200,000  
Weighted average grant-date fair value of options     $ 8.16  
Stock-based compensation, vesting period (in years)     4 years 0 months 0 days  
Total unrecognized compensation cost related to unvested Liberty equity awards $ 125   $ 125  
Weighted average period of recognition related to unvested equity awards (in years)     2 years 3 months 18 days  
Stock-based compensation 38 18 124 53
TripAdvisor, Inc. [Member]
       
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options 39   39  
Options granted     2,800,000  
Weighted average grant-date fair value of options     $ 28.11  
Weighted average period of recognition related to unvested equity awards (in years)     3 years 6 months  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 9,700,000   9,700,000  
Exercisable options 3,500,000   3,500,000  
Stock-based compensation 14   44  
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Stock Options $ 112   $ 112  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     1,100,000  
Restricted Stock Units (RSUs) [Member] | TripAdvisor, Inc. [Member]
       
Weighted average period of recognition related to unvested equity awards (in years)     3 years 3 months 18 days